Question

Resolva as Equações a) X Sobre 2 - X Sobre 4 = 1 Sobre 2

Answer 1

Mmc e depois só Ajustar a igualdade

Answer 2

$\frac{x}{2}- \frac{x}{4}= \frac{1}{2} \\ \frac{1}{2}*- \frac{1}{4}*= \frac{1}{2} \\ \frac{2*1-1*1}{4}*= \frac{1}{2} \\ \frac{2-1*1}{4}*= \frac{1}{2} \\ \frac{2-1}{4}*= \frac{1}{2} \\ \frac{1}{4} *= \frac{1}{2} \\ x= \frac{1}{2} / \frac{1}{4} \\ x= \frac{1}{2}* \frac{4}{1} \\ x= \frac{1}{2}*4 \\ x=1*2 \\ x=2$